If you see something for the first time there is no thought, you think only when you see something that you're already familiar with.
Sir @minaminosuechi,
Are you referring to looking and not seeing?
Example: You are walking to your destination and there are several things that you look at, many of which you do not think about? Is that what you mean? Please expand on "Something familiar...", how do you mean?
I know that looking and seeing has different meaning but as you know I use layman terms. So I'm referring to something thats first time thing, be it looking/seeing/experiencing etc.
Example:
When I met you in person for the first time, I gave you bisi bele bath food.
You had no clue on what that dish was and I'm sure your mind would have been blank when you saw it or when you were about to taste it.
Now that you've tasted it, you might be familiar with that dish.
Also note that how memory/past knowledge/thought works, only if u can remember the taste you recall of the dish taste if not then it will still feel like its first time even though you have had it before.